Radiolaria - Entactinaria - Saturnalidae

Alternative combinations: Acanthocircus gracilis, Kozurastrum gracilis, Pseudoheliodiscus gracilis, Spongosaturnalis gracilis

Belongs to Praemesosaturnalis according to Sugiyama 1997

Sister taxa: Praemesosaturnalis acanthicus, Praemesosaturnalis convertus, Praemesosaturnalis heilongjiangensis, Praemesosaturnalis nobleae, Praemesosaturnalis palawanensis, Praemesosaturnalis quadriradiatus, Praemesosaturnalis rugosus, Praemesosaturnalis spiralis, Praemesosaturnalis validus, Praemesosaturnalis zapfei